Machine for hulling and finishing rice



R. ANDERSON.

Rice Huller.

Patented Feb. 21, 1860;

Inventor:

iVitwesa-es N. PETERS. PhmmLillwgnphnr. Washington, 04 a UNITED STATESPATENT @FFICE.

ROBERT ANDERSON, OF BROOKLYN, NE\V YORK.

MACHINE FOR HULLING AND FINISHING RICE.

Specification forming part of Letters IE'atent No. 27,195, dated FebruarAugust 13, 1867, No. 2,733.

To all whom it may concern:

Be it known that I, ROBERT ANDERSON, of Brooklyn, in the county of Kingsand State of New York, have invented and made certain new and usefulImprovements in Machinery for Hulling and Finishing Rice; and I dohereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same, referencebeing had to the annexed drawing, making part of this specification,wherein Figure 1, is a vertical longitudinal section of my machine, andFig. 2, is a cross section at the line as, as, of Fig. 1.

Similar letters refer to the same parts.

My said invention relates to the finishing of rice after the operationof hulling and for this purpose I apply a rubbing operation that removesthe refuse skin or douse between the hull and rice. To perform thisrubbing operation I make use of a series of revolving heaters orstirrers of alum dressed hide that I have found practically to possesspeculiar fitness for this purpose.

In the drawing a, a, is a frame of suit-able size and material carryingthe horizontal shaft 6, that is connected either directly or through anintermediate shaft and belting to the second shaft 0, likewise supportedin a part of the frame a.

(Z is a pulley or crank by which the shaft 0, is rotated and also thedisks 6, e, that are attached thereto as seen in Fig. 1, and adjusted byset nuts 1, 1. The faces of these disks 6, e, are lined with eithernatural or artificial stone or the equivalent thereof of a porous hardand gritty nature and the sections setting onto the face of each ofthese disks are confined by a band 2, as seen in Fig. 1, and the faceview Fig. 3. These mineral sectional facings may be three or more innumber, and two or more pairs of hullers may be fitted on one shaft.

Against the sides of the machine I attach disks of india rubber orsimilar material as seen at f f, and g is a hopper from which aregulated supply of rice passes onto the inclines h, h, that supply thesame through an opening near their center to each pair of hullerscomposed of the stationary elastic or india rubber surface f, and therevolving O- Reissuecl disk, faced with stone or its equivalent. Thesehullers effectually rub, abrade and crack off the hulls, and the hullsand rice are thrown off into a casing i, i, surrounding the hullers, andthence spouts 70, 7c, convey then onto an inclined screen Z, that isshaken by a lever m, see dotted lines Fig. 2, that is acted on by a camor cams on the shaft 0.

n, is a rotary blower revolved by the pulleys and cord 0, and the blastfrom said blower takes away the hulls, and any particles of grit or dirtfall through the screen Z, while the rice is taken by the trough p, tothe finishing cylinder 9 that surrounds the shaft Z). This cylinder 9,is formed with open ends connected by arms to a journaled box at eachend surrounding the shaft 6, so that said cylinder 9 can be rotated inone direction by power applied to the pulley 7, while the shaft 6, isrotated in the other direction by power applied to the pulley r.

The cylinder 9 is provided with a suitable number of openings at properintervals which openings are covered with fine wire netting so that dustmay pass out, but the rice will be effectually retained. The interior ofcylinder 9, may be coated with any suitable substance such as sand,emery or a peculiar composition which I have invented, and which willprobably form the subject of a separate patent.

The shaft Z), carries arms 8, 8 see Fig. 2, onto which are attachedlongitudinal clamping bars t, t, that are adjustable on said arms nearerto, or farther from the shaft and said clamps confine the flexibleheaters 24, u, that are composed of alum dressed hide. I have foundpractically that this alum dressed hide possesses a peculiar fitness forpearling or finishing rice, because the glutinous skin of the rice doesnot adhere thereto or become sticky as is the case with ordinary tannedhide and with india rubber, and the peculiar velvet consistency of suchhide renders it especially adapted to this use, because the ricepartially embed themselves and are more thoroughly polished.

By means of the adjustable bars 6, t, the wear on the flexible heatersu, u, may be compensated; and when desired beaters of india rubber maybe interspersed with the I do not claim a revolving cylinder forpearling or finishing rice; but

What I claim and desire to secure by Letters Patent is A series ofrevolving beaters of alum dressed hide acting to finish the ricesubstantially in the manner specified.

In Witness whereof I have hereunto set my signature this ninth day ofNovember 1859.

ROBERT ANDERSON.

Witnesses:

LEMUEL W. SERRELL, SAMUEL S. ANDERSON.

